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Finding the Fourth Proportional to 56,569.44, 78,061.28 and 32,697.66

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Solution

The fourth proportional to 56,569.44, 78,061.28 and 32,697.66 is: 45,120.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,569.44 : 78,061.28 = 32,697.66 : x
  2. Step 2: Convert to fraction form
    56,569.44/78,061.28 = 32,697.66/x
  3. Step 3: Cross multiply
    56,569.44x = 78,061.28 × 32,697.66
  4. Step 4: Simplify right side
    56,569.44x = 2,552,421,029.12
  5. Step 5: Solve for x
    x = 2,552,421,029.12/56,569.44
  6. Step 6: Final answer
    x = 45,120.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.